chore(ci): github build tag release workflow

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/ci.yml

@@ -0,0 +1,133 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+      - master
+    tags:
+      - '*'
+  pull_request:
+    branches:
+      - main
+      - master
+
+jobs:
+  build:
+    name: Build
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: ubuntu-20.04
+        metamod-version: 703c36e7b7711ef441932025eebaabf4b7d5e548
+        python-version: '3.11'
+        include:
+          - os: ubuntu-20.04
+            target-archs: x86,x86_64
+            sdk: sdk2013
+            sdk-version: '4c27c1305c5e042ae1f62f6dc6ba7e96fd06e05d'
+            compiler_cc: gcc
+            compiler_cxx: g++
+
+    steps:
+      - name: Install Linux packages
+        if: runner.os == 'Linux'
+        run: |
+          sudo apt update
+          sudo apt install -yq --no-install-recommends g++-multilib ${{ matrix.compiler_cc }}
+
+      - name: Select compiler
+        if: startsWith(runner.os, 'Linux')
+        run: |
+          echo "CC=${{ matrix.compiler_cc }}" >> $GITHUB_ENV
+          echo "CXX=${{ matrix.compiler_cxx }}" >> $GITHUB_ENV
+          ${{ matrix.compiler_cc }} --version
+          ${{ matrix.compiler_cxx }} --version
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          path: extension
+
+      - name: Checkout Metamod
+        uses: actions/checkout@v4
+        with:
+          repository: alliedmodders/metamod-source
+          ref: ${{ matrix.metamod-version }}
+          path: metamod-source
+          submodules: recursive
+
+      - name: Checkout hl2sdks
+        uses: actions/checkout@v4
+        with:
+          repository: alliedmodders/hl2sdk
+          ref: ${{ matrix.sdk-version }}
+          path: hl2sdk-${{ matrix.sdk }}
+          submodules: recursive
+
+      - name: Install AMBuild
+        run: |
+          python -m pip install wheel
+          python -m pip install git+https://github.com/alliedmodders/ambuild
+
+      - name: Build
+        working-directory: extension
+        shell: bash
+        env:
+          BREAKPAD_SYMBOL_SERVER: ${{ secrets.BREAKPAD_SYMBOL_SERVER }}
+        run: |
+          ls -all ../
+          mkdir build && cd build
+          python ../configure.py --enable-optimize --symbol-files --targets=${{ matrix.target-archs }} --sdks=${{ matrix.sdks }}
+          ambuild
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: ${{ runner.os }}
+          path: extension/build/package
+
+
+  release:
+    name: Release
+    if: startsWith(github.ref, 'refs/tags/')
+    needs: build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v3
+
+      - name: Package
+        run: |
+          version=`echo $GITHUB_REF | sed "s/refs\/tags\///"`
+          ls -Rall
+          if [ -d "./Linux/" ]; then
+            cd ./Linux/
+            tar -czf ../${{ github.event.repository.name }}-${version}-linux.tar.gz -T <(\ls -1)
+            cd -
+          fi
+          if [ -d "./macOS/" ]; then
+            cd ./macOS/
+            tar -czf ../${{ github.event.repository.name }}-${version}-mac.tar.gz -T <(\ls -1)
+            cd -
+          fi
+          if [ -d "./Windows/" ]; then
+            cd ./Windows/
+            tar -czf ../${{ github.event.repository.name }}-${version}-windows.tar.gz -T <(\ls -1)
+            cd -
+          fi
+
+      - name: Release
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: '*.tar.gz'
+          tag: ${{ github.ref }}
+          file_glob: true